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I'm yearning for a Cayman and have taken 2 test drives. Love the car, but I'm worried about a strange problem, wondering if anyone has experienced this: Drove two different cars for 15 minutes each and when the car hit rough pavement there was a definite sense of pressure in my ears along with the noise of the car responding to the bump. It sounded and felt almost like static, and a pressure in my inner ear. Even lowered the windows to try to alleviate the problem. But it persisted. The salesman with me admitted he heard/felt it as well. Are we both nuts? Or anyone else feel and hear this noise over bumps? I've never felt it in another vehicle before. Would appreciate feedback.
Seriously, was it the same bit of bumpy road? There might be some 'planets-align' combination of bump periodicity, tire pressure, wheel base, etc. that causes the car to resonate for y'all. I had a BMW 3-series that drove me crazy with the sunroof back between 59 and 62 mph, for example. But I've never experienced what you're talking about and I'm wayyyyyyyyy persnickety about rattles, noises, etc.
I experienced the same thing during my 3 test drives and for the first week or so of driving after I purchased my Cayman. It just may be that we're more sensitive to that frequency range than other people. It did bother me a bit in the beginning, but I've since gotten used to it and I don't notice it anymore, even if I 'try' to listen for it.
I've got about 2600 miles on my Cayman now and have no issues with the pressure/sound anymore.
Hey Dave. I am so glad you heard it as well. Thought I was nuts. Drovea Boxter S to see ifit was a frequency the engine was putting out, and had no problem. Very happy to hear that it went away for you. I figure it must be the materials used for sound dampening and the range of sound they put out when going over bumps. To me it was like static on a badly tuned radio station. As I drove I was thinking that I would have to get the Bose upgrade on the sound system and play it loud. But hey, the whole point of the Cayman is to listen to the symphony of the engine right by your ear. Again, thanks for letting me know that I'm not alone. Now I can cancel my expensve psychotherapy.
Interesting post. I was on the fence between the Boxster S and Cayman and went for the Boxster really because riding with the top down was just too much fun. When I had been test driving the Cayman all but the last time I always had the windows open. The last time when I put them up I had the sensation in my inner ear as though I was in a bottle. Almost like I had to pop my ears and they kind of tingled. I chalked it up to allergy season at the time. I wonder if there might be a pressure issue under certain scenarios of closing the doors or windows like the Beetle had when it first came out before they provided for relief of the air pressure inside from the hatch when the doors were closed?
And then there were three. You describe it very well. I do have sensitive ears. When I fly they block. But I don't think a car should have that effect on you. I've been in hundreds of cars and never had the sensation otherwise.
It is normal to feel a pressure differential (?) when rolling up the windows while on the freeway. In most cars I usually have to pop my ears after rolling up the windows. As the windows go up, the wind crossing over the small window holes (as they're almost closed) creates a vacuum and the pressure inside the vehicle changes. Just pop your ears after you roll the windows up.
I have never esperienced pressure changes while going over bumps with the windows up or down. Only when closing the windows from the open position at highway speed. As I said earlier, this is normal in most cars.
Thanks for the reference to the other thread about the hatch noise. So the pressure noise problem is real. So much so that Porsche has had to do a fix to counter it. A metal bar in the hatch to push it down so that when going over bumps the 'pressure sound' does not occur. But it causes another more standard noise. That sucks. The cars I test drove must not have had the bar. I've been on 5 test drives and always heard the pressure sound. I think that kills a 2006 for me. Clearly I have sensitive ears and not everyone hears this noise, but Porsche recognized it. Now I need to find out if Porsche has this fixed for the 2007's or late 2006 builds. Anyone have a suggestion who we can ask?
No, you not alone, I too have the same problem as you had described. Have you find any solution? I will check with the dealer next week when I bring my car in for service. Will let you know if they have nay solution.
It's because the cabin is effectively airtight. I have the same problem with my CS. You get used to it in a few weeks.
You know you have the problem if you cannot slam the rear hatch shut if the doors and windows are shut. If you open a door then the rear hatch can be slam shut. If this is the case then you are very likely to have this sound pressure problem.
You are not nuts. I also noticed it on my test drive. I wouldn't say my ears are very sensitive, but they are very trained from years of selling, building and installing high end sound systems.
What you are experiencing is a sub sonic cabin pressure increase caused by the hatch. When the car goes over a sharp bump, the car moves, but the 200+lb. hatch stays put. This turns it into a huge woofer. It has been discussed here at lenght and often called the 'sonic boom'.
I am guessing that the cars you drove did not have PASM, or you were in Sport mode. Because people with PASM very rarely report hearing the boom. Which is why many posters here think you're nuts....
There are a couple of things that can be done to minimize the boom.
Get PASM, in normal mode it's a lot softer
If you will be driving on rough roads, be realistic with your wheel selection. Bigger wheels will transmit more roughness.
Have the dealership tighten your hatch latch, which will make it a little harder to close but will prevent the movement on the seal.
This active damping system offers continuous adjustment of individual damping forces based on current road conditions and driving style.
The driver can choose from two setup modes, ‘Normal’ and ‘Sport’, using a separate ‘damper’ button on the center console. ‘Normal’ mode is designed for general road driving and circuits with uneven tarmac. ‘Sport’ mode is intended for smoother track surfaces, where the harder settings help eliminate pitch and roll.
